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[ROS Q&A] 124 – Range sensor does not detect obstacles in Gazebo

by Ricardo Tellez | May 22, 2018 | ROS Q&A

In this video, we are answering a question about why the range sensor plugin for Gazebo is not detecting obstacles. The answer to that problem will surprise you !!! (ha, ha, ha). In this posting, we will go through a demo of laser data visualization NOTE: This article...

[ROS Q&A] 123 – Roslaunch can’t locate node, but rosrun works fine

by Alberto Ezquerro | May 21, 2018 | ROS Q&A

In this video, we are going to answer a question found at ROS answers (https://answers.ros.org/question/291235/roslaunch-cant-locate-node-but-rosrun-works-fine/). The person is asking why he can run a Python script with rosrun, but not when using roslaunch. Let's...

[ROS In 5 Minutes] 006 – What is a ROS launch file?

by Ruben Alves | May 20, 2018 | ROS Tutorials

Hi all! Welcome to this "ROS In 5 Minutes" videos series. In today's videos we are going to see what's a launch file and how to launch it. If you want to Learn ROS Fast, we recommend you the following courses: ROS In 5 Days (Python) ROS In 5 Days (C++) Whether you...

[ROS in 5 mins] 005 – What is a ROS Node?

by Bayode Aderinola | May 19, 2018 | ROS Tutorials

Hello ROS Developers! In this post, we'll see what a ROS node is in just 5 minutes! We'll see how to launch a ROS node, what a ROS node does and some commands to get basic and extended information about ROS nodes. Let's go! Step 1: Setup your development environment...

[ROS Projects] Create a Hopper Robot in Gazebo Step-by-Step

by Miguel Angel | May 18, 2018 | Robotics with ROS

Locomotion is one of the most challenging topics in robotics. Creating the hard-coded algorithms and the kinematics models is not an easy task. Therefore, its no surprise that AI has been used to try and make robots learn how to move by themselves. In this...